X-Men (Europe) – Play Online SEGA Genesis
X-Men (USA) – Play Online SEGA Genesis
X-Men 2 – Clone Wars (USA, Europe) – Play Online SEGA Genesis
X-Perts (USA) – Play Online SEGA Genesis
XDR – X-Dazedly-Ray (Japan) – Play Online SEGA Genesis
Xenon 2 Megablast (Europe) – Play Online SEGA Genesis
Xiao Monv – Magic Girl (China) (Unl) – Play Online SEGA Genesis
Xin Qigai Wangzi (China) (Alt) (Unl) – Play Online SEGA Genesis
Xin Qigai Wangzi (China) (Unl) – Play Online SEGA Genesis